-9 + 8x = 7+ 4x

Wth is this bro

-U subtract 4x
-9+4x=7
U add 9
4x=16
U divide by 4
X =4

You would add 9 on both sides to then get
8x = 16 + 4x
Now you would subtract 4x on both sides to now get
4x = 16
After you would divide 4 on both sides to get x by its self now getting your answer
4

Sorry if this is wrong

What’s your question.

$250 deductible means jane must pay the first $250 of her bill. so the insurance company paid = (80% of bill) - deductible = (0.8 x $2550) - $250 = $2040 - $250 = $1790 and jane's cost is = (bill) - (insurance payment) = $2550 - $1790 = $760